9. A. /                       B. in                       C. of                D. on
10. A. differ                 B. varies           C. extend          D. differs
11. A. the needs                B. the satisfaction  C. needs           D. need
12. A. on which                B. to which           C. which          D. what
13. A. surprise                B. surprised              C. surprising     D. striking
14. A. consisting     B. comprising    C. composing    D. making up
15. A. talk to         B. comment                C. discuss                D. exchange
 
Squishy Cellphones Add a Buzz to Calls 
      Vibrating rubber cellphone could be the next big thing in mobile communications. They allow people to communicate by squishing the phone to transmit_____1_____along with their spoken words. According to a research team at the MIT Media Lab in Cambridge. Massachusetts, the idea will make_____2_____more fun.
Many mobile phones can already be made to vibrate_____3_____ring when you do not want people to know you are getting a call. But these vibrations,_____4_____by a motor spinning an eccentric weight inside the device, are too crude for subtle communication, says Angela Chang of the lab’s Tangible Media Group. “they’re _____5_____ on or off,” she says. 
      But when you grip Chang’s prototype latex cellphone, your fingers and thumb wrap around five_____6_____speakers. They vibrate_____7_____your skin around 250 times per second. Beneath these speakers sit pressure sensors, so you can transmit vibration as well as _____8_____ it. When you squeeze with a finger, a vibration signal is transmitted _____9_____ you caller’s corresponding finger. Its_____10_____depends on how hard you squeeze. 
      She says that within a few minutes of being given_____11_____the phones, students were using the vibration feature to add emphasis to what they were saying or to interrupt the other speaker. Over time, people even began to transmit their_____12_____kind of ad hoe “Morse code”, which they would repeat back to show they were following what the other person was saying. “It was pretty easy to communicate, though we didn’t specifically pre-arrange___13____,” says David Milovich, one of the students who tried out the device.
      Chang thinks “vibralanguages” could _____14_____ for the same reason as testing: sometimes people want to communicate something _____15_____ everyone nearby knowing what they’re saying. “And imagine actually being able to shake someone’s hand when you close a business deal,” he says.

1. A) voices           B) messages    C) vibrations                     D) feelings